<?php

if (!defined('BASEPATH'))
  exit('No direct script access allowed');
/**
 * CodeIgniter
 *
 * An open source application development framework for PHP 5.1.6 or newer
 *
 * @package		CodeIgniter
 * @author		ExpressionEngine Dev Team
 * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
 * @license		http://codeigniter.com/user_guide/license.html
 * @link		http://codeigniter.com
 * @since		Version 1.0
 * @filesource
 */
// ------------------------------------------------------------------------

/**
 * SQLite Utility Class
 *
 * @category	Database
 * @author		ExpressionEngine Dev Team
 * @link		http://codeigniter.com/user_guide/database/
 */
class CI_DB_sqlite_utility extends CI_DB_utility {

  /**
   * List databases
   *
   * I don't believe you can do a database listing with SQLite
   * since each database is its own file.  I suppose we could
   * try reading a directory looking for SQLite files, but
   * that doesn't seem like a terribly good idea
   *
   * @access	private
   * @return	bool
   */
  function _list_databases() {
    if ($this->db_debug) {
      return $this->db->display_error('db_unsuported_feature');
    }
    return array();
  }

  // --------------------------------------------------------------------

  /**
   * Optimize table query
   *
   * Is optimization even supported in SQLite?
   *
   * @access	private
   * @param	string	the table name
   * @return	object
   */
  function _optimize_table($table) {
    return FALSE;
  }

  // --------------------------------------------------------------------

  /**
   * Repair table query
   *
   * Are table repairs even supported in SQLite?
   *
   * @access	private
   * @param	string	the table name
   * @return	object
   */
  function _repair_table($table) {
    return FALSE;
  }

  // --------------------------------------------------------------------

  /**
   * SQLite Export
   *
   * @access	private
   * @param	array	Preferences
   * @return	mixed
   */
  function _backup($params = array()) {
    // Currently unsupported
    return $this->db->display_error('db_unsuported_feature');
  }

}

/* End of file sqlite_utility.php */
/* Location: ./system/database/drivers/sqlite/sqlite_utility.php */